A new DARPA-developed technology is able to buy soldiers more time to get medical care and could potentially save many lives. You simply inject two liquids where a soldier is bleeding. These liquids react and create a foam that presses against an internal wound and restricts the flow of blood. This would buy at least one extra hour to get proper medical care.
Almost 85% of preventable battlefield deaths are from internal wounds that need surgery or other in-hospital treatment. This "magic foam" could provide the extra amount of time needed to get an injured soldier from a firefight to a place where they can receive the right medical attention.
This foam may be made for civilian use as well, it just needs FDA approval.
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